JPH11262612A - Deodorizing filter - Google Patents
Deodorizing filterInfo
- Publication number
- JPH11262612A JPH11262612A JP10068904A JP6890498A JPH11262612A JP H11262612 A JPH11262612 A JP H11262612A JP 10068904 A JP10068904 A JP 10068904A JP 6890498 A JP6890498 A JP 6890498A JP H11262612 A JPH11262612 A JP H11262612A
- Authority
- JP
- Japan
- Prior art keywords
- sheet
- photocatalyst
- deodorizing
- filter
- adsorbent
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 230000001877 deodorizing effect Effects 0.000 title claims abstract description 68
- 239000011941 photocatalyst Substances 0.000 claims abstract description 77
- 239000003463 adsorbent Substances 0.000 claims abstract description 33
- 230000000844 anti-bacterial effect Effects 0.000 claims abstract description 33
- 239000002781 deodorant agent Substances 0.000 claims description 2
- 239000000428 dust Substances 0.000 abstract description 36
- 238000004140 cleaning Methods 0.000 abstract description 8
- 230000001699 photocatalysis Effects 0.000 abstract description 6
- 238000010030 laminating Methods 0.000 abstract description 3
- 230000000052 comparative effect Effects 0.000 description 24
- 238000000034 method Methods 0.000 description 22
- 239000000126 substance Substances 0.000 description 22
- 238000004332 deodorization Methods 0.000 description 21
- 238000001179 sorption measurement Methods 0.000 description 18
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 12
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 11
- IKHGUXGNUITLKF-UHFFFAOYSA-N Acetaldehyde Chemical compound CC=O IKHGUXGNUITLKF-UHFFFAOYSA-N 0.000 description 10
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 10
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 9
- 239000004745 nonwoven fabric Substances 0.000 description 8
- 239000000463 material Substances 0.000 description 7
- 235000019645 odor Nutrition 0.000 description 7
- 241000894006 Bacteria Species 0.000 description 6
- 230000000694 effects Effects 0.000 description 6
- 239000011787 zinc oxide Substances 0.000 description 6
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 4
- 239000000470 constituent Substances 0.000 description 4
- 229910052751 metal Inorganic materials 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- 239000000123 paper Substances 0.000 description 4
- -1 pollen Substances 0.000 description 4
- 239000000779 smoke Substances 0.000 description 4
- 239000003054 catalyst Substances 0.000 description 3
- 235000019504 cigarettes Nutrition 0.000 description 3
- 239000002131 composite material Substances 0.000 description 3
- 150000001875 compounds Chemical class 0.000 description 3
- 238000000354 decomposition reaction Methods 0.000 description 3
- 239000004744 fabric Substances 0.000 description 3
- 239000000835 fiber Substances 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 229910044991 metal oxide Inorganic materials 0.000 description 3
- 150000004706 metal oxides Chemical class 0.000 description 3
- 230000035699 permeability Effects 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 2
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 2
- 241000208125 Nicotiana Species 0.000 description 2
- 235000002637 Nicotiana tabacum Nutrition 0.000 description 2
- KDLHZDBZIXYQEI-UHFFFAOYSA-N Palladium Chemical compound [Pd] KDLHZDBZIXYQEI-UHFFFAOYSA-N 0.000 description 2
- 230000000274 adsorptive effect Effects 0.000 description 2
- 238000004887 air purification Methods 0.000 description 2
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 description 2
- 238000003912 environmental pollution Methods 0.000 description 2
- 230000005284 excitation Effects 0.000 description 2
- 230000007062 hydrolysis Effects 0.000 description 2
- 238000006460 hydrolysis reaction Methods 0.000 description 2
- 230000001678 irradiating effect Effects 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 239000004750 melt-blown nonwoven Substances 0.000 description 2
- 239000003595 mist Substances 0.000 description 2
- 238000006386 neutralization reaction Methods 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 2
- 230000010287 polarization Effects 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 229920006395 saturated elastomer Polymers 0.000 description 2
- 238000004904 shortening Methods 0.000 description 2
- 239000000741 silica gel Substances 0.000 description 2
- 229910002027 silica gel Inorganic materials 0.000 description 2
- 239000011550 stock solution Substances 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- LLZRNZOLAXHGLL-UHFFFAOYSA-J titanic acid Chemical compound O[Ti](O)(O)O LLZRNZOLAXHGLL-UHFFFAOYSA-J 0.000 description 2
- 150000003609 titanium compounds Chemical class 0.000 description 2
- 229910000349 titanium oxysulfate Inorganic materials 0.000 description 2
- XJDNKRIXUMDJCW-UHFFFAOYSA-J titanium tetrachloride Chemical compound Cl[Ti](Cl)(Cl)Cl XJDNKRIXUMDJCW-UHFFFAOYSA-J 0.000 description 2
- ZNOKGRXACCSDPY-UHFFFAOYSA-N tungsten trioxide Chemical compound O=[W](=O)=O ZNOKGRXACCSDPY-UHFFFAOYSA-N 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 241000588724 Escherichia coli Species 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- KJTLSVCANCCWHF-UHFFFAOYSA-N Ruthenium Chemical compound [Ru] KJTLSVCANCCWHF-UHFFFAOYSA-N 0.000 description 1
- 239000004113 Sepiolite Substances 0.000 description 1
- 229910021536 Zeolite Inorganic materials 0.000 description 1
- PVOXCLVRHYZZEP-UHFFFAOYSA-M [OH-].[O-2].[Ti+3] Chemical compound [OH-].[O-2].[Ti+3] PVOXCLVRHYZZEP-UHFFFAOYSA-M 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 239000003522 acrylic cement Substances 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 238000004026 adhesive bonding Methods 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 150000001298 alcohols Chemical class 0.000 description 1
- 150000001491 aromatic compounds Chemical class 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 238000001354 calcination Methods 0.000 description 1
- 230000003197 catalytic effect Effects 0.000 description 1
- 238000006555 catalytic reaction Methods 0.000 description 1
- 239000001913 cellulose Substances 0.000 description 1
- 229920002678 cellulose Polymers 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 229910000420 cerium oxide Inorganic materials 0.000 description 1
- 239000013522 chelant Chemical class 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 150000002170 ethers Chemical class 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 239000010408 film Substances 0.000 description 1
- 229930003935 flavonoid Chemical class 0.000 description 1
- 150000002215 flavonoids Chemical class 0.000 description 1
- 235000017173 flavonoids Nutrition 0.000 description 1
- 238000004817 gas chromatography Methods 0.000 description 1
- 230000002070 germicidal effect Effects 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 150000002391 heterocyclic compounds Chemical class 0.000 description 1
- 230000003301 hydrolyzing effect Effects 0.000 description 1
- 150000004679 hydroxides Chemical class 0.000 description 1
- 238000005470 impregnation Methods 0.000 description 1
- 238000010406 interfacial reaction Methods 0.000 description 1
- 238000005342 ion exchange Methods 0.000 description 1
- 150000002506 iron compounds Chemical class 0.000 description 1
- 238000004898 kneading Methods 0.000 description 1
- 229920005610 lignin Polymers 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000011068 loading method Methods 0.000 description 1
- 239000000395 magnesium oxide Substances 0.000 description 1
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 1
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 description 1
- 238000002074 melt spinning Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 229910000480 nickel oxide Inorganic materials 0.000 description 1
- 230000006911 nucleation Effects 0.000 description 1
- 238000010899 nucleation Methods 0.000 description 1
- 150000002902 organometallic compounds Chemical class 0.000 description 1
- BMMGVYCKOGBVEV-UHFFFAOYSA-N oxo(oxoceriooxy)cerium Chemical compound [Ce]=O.O=[Ce]=O BMMGVYCKOGBVEV-UHFFFAOYSA-N 0.000 description 1
- GNRSAWUEBMWBQH-UHFFFAOYSA-N oxonickel Chemical compound [Ni]=O GNRSAWUEBMWBQH-UHFFFAOYSA-N 0.000 description 1
- SOQBVABWOPYFQZ-UHFFFAOYSA-N oxygen(2-);titanium(4+) Chemical class [O-2].[O-2].[Ti+4] SOQBVABWOPYFQZ-UHFFFAOYSA-N 0.000 description 1
- 229910052763 palladium Inorganic materials 0.000 description 1
- 125000004817 pentamethylene group Chemical class [H]C([H])([*:2])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[*:1] 0.000 description 1
- 238000013032 photocatalytic reaction Methods 0.000 description 1
- 229910052615 phyllosilicate Inorganic materials 0.000 description 1
- 229910052697 platinum Inorganic materials 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000009790 rate-determining step (RDS) Methods 0.000 description 1
- 229910052703 rhodium Inorganic materials 0.000 description 1
- 239000010948 rhodium Substances 0.000 description 1
- MHOVAHRLVXNVSD-UHFFFAOYSA-N rhodium atom Chemical compound [Rh] MHOVAHRLVXNVSD-UHFFFAOYSA-N 0.000 description 1
- 229910052707 ruthenium Inorganic materials 0.000 description 1
- 229910001925 ruthenium oxide Inorganic materials 0.000 description 1
- WOCIAKWEIIZHES-UHFFFAOYSA-N ruthenium(iv) oxide Chemical compound O=[Ru]=O WOCIAKWEIIZHES-UHFFFAOYSA-N 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 229910052624 sepiolite Inorganic materials 0.000 description 1
- 235000019355 sepiolite Nutrition 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 230000035943 smell Effects 0.000 description 1
- 238000009987 spinning Methods 0.000 description 1
- 150000003464 sulfur compounds Chemical class 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
- 239000010457 zeolite Substances 0.000 description 1
Landscapes
- Machines For Manufacturing Corrugated Board In Mechanical Paper-Making Processes (AREA)
- Disinfection, Sterilisation Or Deodorisation Of Air (AREA)
- Filtering Materials (AREA)
- Filtering Of Dispersed Particles In Gases (AREA)
- Catalysts (AREA)
- Treating Waste Gases (AREA)
- Separation Of Gases By Adsorption (AREA)
- Exhaust Gas Treatment By Means Of Catalyst (AREA)
Abstract
Description
【0001】[0001]
【発明の属する技術分野】本発明は脱臭フィルターに関
し、さらに詳しくは、吸着剤による脱臭作用、エレクト
レットシートによる除塵作用、光反応性半導体の光触媒
作用により、悪臭や細菌などの有害物質を分解除去可能
あるいは浮遊塵の除去を行い、かつ励起光の有効利用お
よび高度の通気性を具備する脱臭フィルターに関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a deodorizing filter, and more particularly, to decompose and remove harmful substances such as odors and bacteria by a deodorizing action by an adsorbent, a dust removing action by an electret sheet, and a photocatalytic action of a photoreactive semiconductor. Alternatively, the present invention relates to a deodorizing filter which removes suspended dust and has effective use of excitation light and high air permeability.
【0002】[0002]
【従来の技術】工場などにおける工業的に発生する悪臭
や有害化学物質、多量の廃棄物を排出する飲食店やホテ
ルなどのサービス産業における廃棄物に起因した悪臭な
どによる従来からの環境汚染の問題に加えて、最近のア
メニティ志向の高まりに伴い、一般生活空間、例えば室
内や自動車内の悪臭、有害化学物質、花粉、浮遊塵や浮
遊細菌などによる室内環境汚染の問題がクローズアップ
されており、これら有害物質の除去に対するニーズが急
速に高まっている。2. Description of the Related Art Problems of conventional environmental pollution caused by industrially generated odors and harmful chemical substances in factories, and odors caused by wastes in service industries such as restaurants and hotels that discharge a large amount of waste. In addition, with the recent increase in amenity orientation, the problem of indoor environmental pollution due to odors, harmful chemicals, pollen, suspended dust and suspended bacteria in general living spaces, for example, indoors and cars, has been highlighted. The need for the removal of these harmful substances is rapidly increasing.
【0003】悪臭や有害化学物質などの有害物質の除去
方法としては、活性炭やゼオライトなどの多孔性物質、
いわゆる吸着剤による吸着除去が一般的である。しかし
ながら、吸着剤は大部分の有害物質に対して吸着作用し
か示さず、一定量の有害物質を吸着すると除去性能が著
しく低下する、あるいは、周囲の温度や有害物質の濃度
如何では一度吸着した有害物質が離脱してしまうという
問題点があった。[0003] As a method of removing harmful substances such as odors and harmful chemical substances, porous substances such as activated carbon and zeolite,
A so-called adsorption removal by an adsorbent is common. However, the adsorbent only shows an adsorbing effect on most harmful substances, and when a certain amount of harmful substances is adsorbed, the removal performance is significantly reduced, or harmful substances once adsorbed depending on the ambient temperature and concentration of harmful substances. There is a problem that the substance is detached.
【0004】このような問題を解決するために、触媒を
用いて有害物質を分解除去する方法が考案されている。
有害物質の分解除去能を有する材料は各種知られている
が、中でも酸化チタンに代表される光触媒が近年大きな
注目を集めている。例えば、Cundallらは、J.
Oil.Chem.Assoc.1978,61,35
1において、酸化チタンに紫外線を照射した場合、水と
アルコールの混合系でアルコールが分解されることを報
告している。さらに特開昭61−135669号公報に
おいては、酸化亜鉛などの光触媒に紫外光を照射する
と、悪臭物質である硫黄化合物が分解されることが報告
されている。これら光触媒による分解反応においては、
反応の進行に伴って光触媒が消費されることはなく、光
に曝露されている限りその分解能力は半永久的である。
このような光触媒反応は界面反応であり、光触媒と分解
対象物との接触機会が多いほど効率的に進行する。従っ
て、光触媒の形状としては、比表面積を大きくとれる粉
体であることが好ましいが、光触媒を粉体のまま使用す
ることは難しく、何らかの方法を用いて適当な支持体に
担持固定する必要がある。In order to solve such a problem, a method of decomposing and removing harmful substances using a catalyst has been devised.
Various materials having the ability to decompose and remove harmful substances are known, and among them, a photocatalyst represented by titanium oxide has been receiving great attention in recent years. For example, Cundall et al.
Oil. Chem. Assoc. 1978, 61, 35
No. 1 reports that when titanium oxide is irradiated with ultraviolet light, alcohol is decomposed in a mixed system of water and alcohol. Further, JP-A-61-135669 reports that when a photocatalyst such as zinc oxide is irradiated with ultraviolet light, a sulfur compound which is a malodorous substance is decomposed. In these photocatalytic decomposition reactions,
The photocatalyst is not consumed as the reaction proceeds, and its decomposition ability is semi-permanent as long as it is exposed to light.
Such a photocatalytic reaction is an interfacial reaction, and the more efficiently the photocatalyst contacts the decomposition target, the more efficiently it proceeds. Therefore, as the shape of the photocatalyst, it is preferable that the photocatalyst be a powder capable of obtaining a large specific surface area, but it is difficult to use the photocatalyst as it is, and it is necessary to carry and fix the photocatalyst to an appropriate support using some method. .
【0005】これまでにも、例えば特開平1−1893
22号公報や実開平2−45130号公報に開示されて
いるように、単位体積当たりの光照射を受ける触媒量を
高めた光触媒の担持方法が考案されている。[0005] For example, Japanese Patent Application Laid-Open No.
As disclosed in Japanese Unexamined Patent Publication No. 22 and No. 2-45130, a method for supporting a photocatalyst in which the amount of a catalyst that receives light irradiation per unit volume is increased.
【0006】コルゲート状光触媒フィルターにおいて
は、圧力損失の問題は少なく、単位体積あたりの光照射
を受ける触媒量が大きいという特徴があるが、光触媒の
特性として多量の臭気物質を分解するには光量が律速と
なることが多く、脱臭効果を十分に発揮できないという
問題があった。また、空気清浄を行う場合に空気中の
塵、花粉、タバコの煙などの除去を行わなければ光触媒
シートの表面が汚れてしまい、光触媒機能を果たせなく
なるという問題があった。このような問題を避けるため
に脱臭フィルターや除塵フィルターを光触媒フィルター
の全面に設置すると空気清浄で非常に重要な要因である
圧力損失の低下を招くというジレンマが存在した。The corrugated photocatalyst filter is characterized in that the problem of pressure loss is small and that the amount of catalyst that receives light irradiation per unit volume is large. There is a problem that the rate is often limited and the deodorizing effect cannot be sufficiently exerted. Further, when air cleaning is performed, the surface of the photocatalyst sheet becomes dirty unless dust, pollen, smoke from cigarettes, and the like in the air are removed, and the photocatalytic function cannot be performed. If a deodorizing filter or a dust removing filter is installed on the entire surface of the photocatalytic filter in order to avoid such a problem, there is a dilemma that pressure loss, which is a very important factor in air cleaning, is reduced.
【0007】[0007]
【発明が解決しようとする課題】本発明の課題は、空気
清浄のためのフィルターにおいて、圧力損失を低下させ
ずに効率よく悪臭や細菌などの有害物質を除去し、浮遊
塵や浮遊菌の除去を行う長時間使用できる脱臭フィルタ
ーを提供することにある。SUMMARY OF THE INVENTION An object of the present invention is to provide a filter for air cleaning, which efficiently removes odorous substances and harmful substances such as bacteria without reducing pressure loss, and removes airborne dust and airborne bacteria. To provide a deodorizing filter that can be used for a long time.
【0008】[0008]
【課題を解決するための手段】本発明者らは、上記課題
を解決するため、鋭意検討した結果、本発明に到達した
ものである。Means for Solving the Problems The present inventors have made intensive studies to solve the above-mentioned problems, and as a result, have reached the present invention.
【0009】吸着剤を含有する吸着脱臭シートと、光触
媒を含有する光触媒シートを交互に積層してコルゲート
に形成したことを特徴とする脱臭抗菌フィルター。A deodorizing antibacterial filter characterized in that an adsorbing and deodorizing sheet containing an adsorbent and a photocatalyst sheet containing a photocatalyst are alternately laminated to form a corrugated antibacterial filter.
【0010】光触媒を含有する光触媒シートと、エレク
トレットシートを交互に積層してコルゲートに形成した
ことを特徴とする脱臭抗菌除塵フィルター。[0010] A deodorizing antibacterial dust filter characterized in that a photocatalyst sheet containing a photocatalyst and an electret sheet are alternately laminated to form a corrugate.
【0011】吸着剤を含有する吸着脱臭シートと、エレ
クトレットシートを交互に積層してコルゲートに形成し
たことを特徴とする脱臭除塵フィルター。[0011] A deodorizing and dedusting filter characterized in that an adsorbent-containing deodorizing sheet containing an adsorbent and an electret sheet are alternately laminated to form a corrugate.
【0012】吸着剤を含有する吸着脱臭シートと、光触
媒を含有する光触媒シートを交互に積層してコルゲート
に形成したことを特徴とする脱臭抗菌フィルターあるい
は光触媒を含有する光触媒シートと、エレクトレットシ
ートを交互に積層してコルゲートに形成したことを特徴
とする脱臭抗菌除塵フィルターに光が当たるように設計
された空気清浄機。An adsorbent-containing deodorizing sheet and a photocatalyst-containing photocatalyst sheet are alternately laminated to form a corrugate, and a deodorizing antibacterial filter or a photocatalyst sheet containing a photocatalyst and an electret sheet are alternately formed. An air purifier designed to shine light on a deodorizing antibacterial dust filter, characterized by being laminated on a corrugate.
【0013】[0013]
【発明の実施の形態】以下に、本発明の脱臭フィルター
に係わる構成要素を詳細に説明する。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The components relating to the deodorizing filter of the present invention will be described below in detail.
【0014】本発明において用いられる光触媒シートに
担持される光触媒は、光の照射によってその触媒反応を
促進させるものであって、その種類は特に限定されるこ
とはない。例えば、特開平2−273514号公報に開
示されているものを挙げることが可能であり、酸化亜
鉛、三酸化タングステン、酸化チタン、酸化セリウムな
どの金属酸化物が好ましく、これらの中でも、酸化チタ
ンは、構造安定性、光触媒としての能力、取り扱い上の
安全性などを考慮した場合、特に好ましい材料である。
酸化チタンとしては、従来汎用の酸化チタンの他、含水
酸化チタン、メタチタン酸、オルソチタン酸、水酸化チ
タンと呼称されているチタン酸化物または水酸化物を全
て包含する。酸化チタンの製造方法としては、硫酸チタ
ニル、塩化チタン、有機チタン化合物などを必要に応じ
て核形成用種子の共存下で加水分解する方法(加水分解
法)、必要に応じて核形成用種子を共存させながら、硫
酸チタニル、塩化チタン、有機チタン化合物などにアル
カリ剤を添加して中和する方法(中和法)、加水分解お
よび中和法で得られた酸化チタンを焼成する方法(焼成
法)などが挙げられ、何れの製法によって得られた酸化
チタンでも用いることができる。The photocatalyst supported on the photocatalyst sheet used in the present invention promotes its catalytic reaction by light irradiation, and the type thereof is not particularly limited. For example, those disclosed in JP-A-2-273514 can be cited, and metal oxides such as zinc oxide, tungsten trioxide, titanium oxide, and cerium oxide are preferable. Among these, titanium oxide is It is a particularly preferable material in consideration of structural stability, ability as a photocatalyst, safety in handling, and the like.
Examples of the titanium oxide include all titanium oxides or hydroxides called titanium oxide hydroxide, metatitanic acid, orthotitanic acid, and titanium hydroxide, in addition to conventional general-purpose titanium oxide. As a method for producing titanium oxide, a method of hydrolyzing titanyl sulfate, titanium chloride, an organic titanium compound and the like in the presence of seeds for nucleation as necessary (hydrolysis method), A method in which an alkaline agent is added to titanyl sulfate, titanium chloride, an organic titanium compound, and the like to neutralize them while coexisting (neutralization method), and a method in which titanium oxide obtained by hydrolysis and neutralization is calcined (calcination method) ), Etc., and titanium oxide obtained by any of the production methods can be used.
【0015】また、上記の光触媒に白金、金、パラジウ
ム、ロジウム、ルテニウムなどの金属、酸化ルテニウ
ム、酸化ニッケルなどの金属酸化物を担持させることに
よって、光触媒の機能を一層高めることも可能である。
これらは光触媒の表面に担持してもよいし、光触媒シー
ト中に混合してもよい。なお、光触媒への金属、金属酸
化物の担持は、含浸法、イオン交換法、光電析法、混練
法などの従来公知の技術によって行われる。Further, by supporting a metal such as platinum, gold, palladium, rhodium and ruthenium and a metal oxide such as ruthenium oxide and nickel oxide on the photocatalyst, the function of the photocatalyst can be further enhanced.
These may be carried on the surface of the photocatalyst or may be mixed in the photocatalyst sheet. The loading of the metal or metal oxide on the photocatalyst is performed by a conventionally known technique such as an impregnation method, an ion exchange method, a photoelectric deposition method, and a kneading method.
【0016】本発明の光触媒シートは、通常用いられる
材料によって作製される。その種類は特に限定されるこ
とはないが、例えば、各種の紙、不織布、樹脂フィルム
などのシート、セラミック、ガラス、金属、木材などを
用いることができる。本発明においては、光触媒を担持
した繊維状シート、例えば紙、不織布、布帛などは多孔
質構造であり、光触媒と臭気物質との接触の機会が多い
ため、特に好ましい。The photocatalyst sheet of the present invention is made of a commonly used material. Although the type is not particularly limited, for example, various types of paper, nonwoven fabric, sheets such as resin films, ceramic, glass, metal, wood, and the like can be used. In the present invention, a fibrous sheet carrying a photocatalyst, such as paper, nonwoven fabric, or cloth, has a porous structure, and has many opportunities for contact between the photocatalyst and the odorous substance.
【0017】上記の各種材料に光触媒を担持させ、本発
明の光触媒シートを得る方法としては、例えば各種の
紙、不織布、樹脂フィルムなどのシートに、光触媒を抄
き込み、含浸、練り込みなどの各種の方法により担持さ
せる方法が挙げられ、このようにして得られた光触媒シ
ートをコルゲート状に加工する。あるいは、酸化チタ
ン、酸化亜鉛などの光触媒を、そのままコルゲートの構
成材料としてもよい。さらには、吸着剤の吸着効率が低
下するが、あらかじめコルゲート状部材とした吸着構造
体に、各種の光触媒を担持させたり、光触媒シート中で
活性炭やシリカゲルなどの吸着剤を光触媒と併用しても
よい。As a method of obtaining a photocatalyst sheet of the present invention by supporting a photocatalyst on the above-mentioned various materials, for example, the photocatalyst is formed, impregnated, kneaded, or the like into sheets of various papers, nonwoven fabrics, resin films and the like. There are various methods for supporting the photocatalyst, and the photocatalyst sheet thus obtained is processed into a corrugated shape. Alternatively, a photocatalyst such as titanium oxide or zinc oxide may be used as a constituent material of the corrugate as it is. Furthermore, although the adsorption efficiency of the adsorbent decreases, various adsorbents such as activated carbon and silica gel are used in combination with an adsorbent such as activated carbon or silica gel in an adsorbent structure previously formed as a corrugated member. Good.
【0018】本発明の脱臭フィルターに用いられるコル
ゲート構造体は、JIS Z 1516−1995「外
装用段ボール」に準拠して作製される。例えば、ライナ
上に中しんを接合した片段ボールを順次接着剤で積層さ
せてコルゲートブロックを作製し、コルゲートブロック
のライナ面に対して垂直に、あるいは一定の角度で斜め
に切断してコルゲート状の脱臭フィルターとすればよ
い。コルゲートとは形状が異なるが、展張時に四角形あ
るいは六角形となるいわゆるハニカムフィルターに関し
ては、構成するシートに一定の巾で複数本の線状に糊付
けし、その上に別の構成シートを重ね合わせ、ピッチを
ずらせて一定の巾で複数本の線状に糊付けしさらに別の
構成シートを重ね合わせるという工程でハニカムブロッ
クを作製し、糊ラインに直交する形、あるいは一定の角
度を保って断裁し、展張すればハニカムフィルターが得
られる。The corrugated structure used in the deodorizing filter of the present invention is manufactured in accordance with JIS Z 1516-1995 "Corrugated cardboard for exterior use". For example, a single corrugated cardboard with a middle binder bonded on a liner is sequentially laminated with an adhesive to produce a corrugated block, and cut perpendicularly to the liner surface of the corrugated block or at an oblique angle to form a corrugated block. A deodorizing filter may be used. The so-called honeycomb filter, which has a different shape from the corrugate but becomes a quadrangle or hexagon when expanded, is glued into a plurality of lines with a certain width on the constituent sheet, and another constituent sheet is superimposed on it. A honeycomb block is produced in the process of shifting the pitch and gluing it into a plurality of lines with a fixed width and further laminating another constituent sheet, and cutting it at a shape perpendicular to the glue line or at a certain angle, If expanded, a honeycomb filter can be obtained.
【0019】本発明の空気清浄機においては、光触媒シ
ートを使用した脱臭抗菌フィルターあるいは脱臭抗菌除
塵フィルターに光が当たるように設計された構成を有す
る。光源の波長としては光触媒の励起光(酸化チタンな
らば400nm以下)を含有すれば良く、ブラックライ
ト、ケミカルランプ、殺菌灯、蛍光灯、太陽光などがフ
ィルターに効率よく当たるように設計されていればよ
い。The air purifier of the present invention has a structure designed so that light is applied to a deodorizing antibacterial filter or a deodorizing antibacterial dust filter using a photocatalyst sheet. The wavelength of the light source may include the excitation light of the photocatalyst (400 nm or less in the case of titanium oxide), and the light source may be designed so that a black light, a chemical lamp, a germicidal lamp, a fluorescent lamp, sunlight, etc. can efficiently hit the filter. I just need.
【0020】本発明で用いられる吸着剤は、悪臭や細菌
などの有害物質を吸着するために用いられるものであ
る。一時的に暗所になるような使用環境、光量の少ない
使用環境、あるいは吸着過程が律速段階となる有害物質
が低濃度で存在するような使用環境においても吸着剤の
吸着作用によって高度の有害物質除去能を維持すること
が可能となる。なお、吸着能のみならず、触媒作用をも
同時に有する吸着剤も好ましい材料の一つである。The adsorbent used in the present invention is used to adsorb harmful substances such as bad smells and bacteria. Highly harmful substances due to the adsorbent's adsorption effect even in a usage environment where the environment is temporarily dark, where the amount of light is low, or where there is a low concentration of harmful substances where the adsorption process is the rate-limiting step. The removal ability can be maintained. In addition, an adsorbent having not only an adsorption ability but also a catalytic action is one of the preferable materials.
【0021】さらに驚いたことには、吸着剤を含有して
なる吸着脱臭シートを、先の光触媒シートと交互に積層
してコルゲート構造を形成し、光触媒と吸着剤とを近傍
に位置させることにより、吸着剤にて悪臭などの成分が
濃縮されるためか脱臭効率が良く、光触媒で効率的に悪
臭成分を分解することが可能であるため脱臭寿命が長く
なる効果が見いだされた。It is further surprising that the adsorbent-containing adsorbent-deodorizing sheet is alternately laminated with the photocatalyst sheet to form a corrugated structure, and the photocatalyst and the adsorbent are located close to each other. The deodorizing efficiency is good because components such as odors are concentrated by the adsorbent, and the effect of prolonging the deodorizing life is found because the photocatalyst can efficiently decompose the odorous components.
【0022】吸着剤の例として例えば無機吸着剤として
は、活性炭、活性白土、天然および合成ゼオライト、セ
ピオライト、酸化鉄などの鉄系化合物、酸化亜鉛、酸化
マグネシウム、シリカ、シリカ−酸化亜鉛複合物、シリ
カ−アルミナ−酸化亜鉛複合物、複合フィロケイ酸塩、
あるいはこれらの混合物などが挙げられる。有機吸着剤
としては各種アルコール化合物、エーテル化合物、カル
ボン酸化合物、アミン系化合物、金属有機化合物、芳香
族化合物、複素環化合物、ペンテン類、フラボノイド
類、キレート化合物、セルロース、リグニン、及びこれ
らの化合物と金属との錯体など各種化合物が挙げられ
る。Examples of the adsorbent include, for example, inorganic adsorbents such as activated carbon, activated clay, natural and synthetic zeolites, sepiolite, iron compounds such as iron oxide, zinc oxide, magnesium oxide, silica, silica-zinc oxide composite, and the like. Silica-alumina-zinc oxide composite, composite phyllosilicate,
Alternatively, a mixture thereof may, for example, be mentioned. As the organic adsorbent, various alcohol compounds, ether compounds, carboxylic acid compounds, amine compounds, metal organic compounds, aromatic compounds, heterocyclic compounds, pentenes, flavonoids, chelate compounds, cellulose, lignin, and these compounds Various compounds such as a complex with a metal are exemplified.
【0023】本発明に係わるエレクトレットシートは、
半永久的に電気分極を保持し、外部に対して電気力を及
ぼすシートあるいはフィルターであって、その静電気力
によって粒子を捕捉するものである。帯電方法として
は、エレクトロエレクトレット、熱エレクトレット、ラ
ジオエレクトレット、メカノエレクトレット、フォトエ
レクトレット、マグネットエレクトレットなどが挙げら
れるが、工業的に不織布フィルターで用いられているの
は、主にエレクトロエレクトレットおよび熱エレクトレ
ットであり、材料としてはポリプロピレンが用いられる
ことが多い。The electret sheet according to the present invention comprises:
A sheet or filter that retains electric polarization semipermanently and applies an electric force to the outside, and captures particles by the electrostatic force. Examples of the charging method include an electro-electret, a heat electret, a radio-electret, a mechano-electret, a photo-electret, a magnet-electret, and the like. As a material, polypropylene is often used.
【0024】不織布は嵩高で3次元空隙が存在するた
め、コロナ放電などによる帯電処理では安定した帯電効
果を得ることが難しい。しかしながら、コロナ放電など
で帯電処理を施したフィルムを繊維状に断裁、それを不
織布化したスプリットファイバーエレクトレットシート
や、メルトブロー紡糸時および溶融紡糸時に高電圧を印
加して熱エレクトレット的に繊維を帯電させたメルトブ
ロー不織布式エレクトレットシートおよびスパンボンド
不織布式エレクトレットシートなどは、安定した分極電
荷を得ることができる。なお、メルトブロー不織布式エ
レクトレットシートは単体では力学的強度が小さいた
め、乾式不織布やスパンボンドなどを貼り合わせて使用
されるのが一般的である。Since the nonwoven fabric is bulky and has three-dimensional voids, it is difficult to obtain a stable charging effect by charging treatment such as corona discharge. However, a film that has been subjected to charging treatment by corona discharge or the like is cut into a fibrous form, and a split fiber electret sheet made of non-woven fabric, or a high voltage is applied during melt blow spinning and melt spinning to charge the fiber like a heat electret. The melt blown nonwoven fabric type electret sheet and the spun bond nonwoven fabric type electret sheet can obtain a stable polarization charge. In addition, since the melt blown nonwoven fabric type electret sheet has a low mechanical strength by itself, it is generally used by laminating a dry nonwoven fabric or a spun bond.
【0025】本発明ではこのようなエレクトレットシー
トと光触媒シートが近傍にあれば、光触媒の寿命を縮め
る大きな要因である塵、埃、タバコの煙(オイルミス
ト)などが効率よく捕集されるため光触媒シートが高寿
命化できることを見いだした。エレクトレットシートで
作製したコルゲートを光触媒シートで作製したコルゲー
トの風上に配置しても同様の光触媒の高寿命化が達成で
きるが、空気清浄装置にとって非常に重要な要素である
圧力損失が増大するという問題がある。本発明の方法で
は圧力損失を増大させずに光触媒の高寿命化が達成でき
る。同じくエレクトレットシートと吸着脱臭シートによ
るコルゲートでは、圧力損失を増大させることなく脱臭
と除塵の両方を行うことができ、効率的な空気清浄が可
能になる。In the present invention, if such an electret sheet and a photocatalyst sheet are close to each other, dust, dust, cigarette smoke (oil mist) and the like, which are major factors for shortening the life of the photocatalyst, are efficiently collected. It has been found that the seat can have a long life. Even if a corrugate made of electret sheet is placed on the windward side of a corrugate made of photocatalyst sheet, a similar long life of the photocatalyst can be achieved, but pressure loss, which is a very important element for air cleaning equipment, increases. There's a problem. According to the method of the present invention, the life of the photocatalyst can be extended without increasing the pressure loss. Similarly, with a corrugate made of an electret sheet and an adsorption and deodorization sheet, both deodorization and dust removal can be performed without increasing pressure loss, and efficient air cleaning can be achieved.
【0026】[0026]
【実施例】以下、本発明を実施例により説明するが、本
発明はこれらの実施例に限定されるものではない。EXAMPLES The present invention will be described below with reference to examples, but the present invention is not limited to these examples.
【0027】本発明に使用される光触媒シートは市販の
物(三菱製紙製、PM−IN−CD;目付50g/
m2)を用いた。エレクトレットシートも市販の物を用
いた(東燃製、PO−40−UL−EOG;目付40g
/m2)。吸着脱臭シートは市販の不織布(倉敷繊維加
工製、FL40)に活性炭とアクリル系接着剤を分散し
た塗液を含浸、乾燥させて作製した(目付;60g/m
2)。The photocatalyst sheet used in the present invention is a commercially available product (manufactured by Mitsubishi Paper Mills, PM-IN-CD; basis weight 50 g /
m 2 ) was used. A commercially available electret sheet was also used (PO-40-UL-EOG, manufactured by Tonen; basis weight 40 g).
/ M 2 ). The adsorptive and deodorizing sheet was prepared by impregnating a commercially available nonwoven fabric (manufactured by Kurashiki Fiber Processing, FL40) with a coating liquid in which activated carbon and an acrylic adhesive were dispersed, and then drying (basis weight: 60 g / m2).
2 ).
【0028】「コルゲート部材の製造」上記のようにし
て作製した光触媒シート、エレクトレットシート、吸着
脱臭シートについて、上述のJIS Z 1516−1
995「外装用段ボール」に準拠して、ライナと中しん
を積層して、ピッチ2.6mm、高さ1.5mmの単段
コルゲートを製造し、単段コルゲートを積層してコルゲ
ートブロックとした。さらにこのコルゲートブロックを
厚み10mm(縦、横とも100mm)にスライスし、
コルゲート部材とした。"Manufacture of corrugated member" The photocatalyst sheet, electret sheet and adsorption / deodorization sheet prepared as described above are used in the above-mentioned JIS Z 1516-1.
In accordance with 995 “Exterior Corrugated Cardboard”, a liner and a middle lining were laminated to produce a single-stage corrugate having a pitch of 2.6 mm and a height of 1.5 mm, and a single-stage corrugate was laminated to form a corrugated block. Furthermore, this corrugated block is sliced to a thickness of 10 mm (length and width is 100 mm),
It was a corrugated member.
【0029】実施例1 吸着脱臭シートをライナーに、光触媒シートを中しんに
用いてコルゲート部材を作製し、脱臭抗菌フィルターと
した。Example 1 A corrugated member was prepared using an adsorption / deodorization sheet as a liner and a photocatalyst sheet as a middle lining to obtain a deodorizing antibacterial filter.
【0030】実施例2 光触媒シートをライナーに、エレクトレットを中しんに
用いてコルゲート部材を作製し、脱臭抗菌除塵フィルタ
ーとした。Example 2 A corrugated member was prepared by using a photocatalyst sheet as a liner and an electret as a middle lining to obtain a deodorizing and antibacterial dust removing filter.
【0031】実施例3 吸着脱臭シートをライナーに、エレクトレットを中しん
に用いてコルゲート部材を作製し、脱臭除塵フィルター
とした。Example 3 A corrugated member was prepared using an adsorbent and deodorizing sheet as a liner and an electret as a middle lining, and used as a deodorizing and dust removing filter.
【0032】実施例4 筐体の中に実施例1で得られた脱臭抗菌フィルターと、
その一面にブラックライトの光があたるように蛍光灯設
備をとりつけ、さらに脱臭抗菌フィルターを通過して風
が流れるようにファンをとりつけて空気清浄機1を作製
した。Example 4 The deodorizing antibacterial filter obtained in Example 1 was placed in a housing.
An air purifier 1 was manufactured by installing a fluorescent lamp facility so that the light of the black light was applied to one side thereof, and further installing a fan so that the wind might flow through the deodorizing antibacterial filter.
【0033】実施例5 筐体の中に実施例2で得られた脱臭抗菌除塵フィルター
と、その一面にブラックライトの光があたるように蛍光
灯設備をとりつけ、さらに脱臭抗菌除塵フィルターを通
過して風が流れるようにファンをとりつけて空気清浄機
2を作製した。Example 5 The deodorizing and antibacterial dust removing filter obtained in Example 2 was installed in a housing, and a fluorescent lamp facility was attached so that the surface of the filter was exposed to black light, and further passed through the deodorizing and antibacterial dust removing filter. An air purifier 2 was manufactured by attaching a fan so that the wind could flow.
【0034】比較例1 吸着脱臭シートのみで作製したコルゲート部材(厚み5
mm)と、光触媒シートのみで作製したコルゲート部材
(厚み5mm)をコルゲートの目を揃えて貼合せ、脱臭
抗菌フィルターとした。Comparative Example 1 A corrugated member (thickness 5
mm) and a corrugated member (thickness: 5 mm) made of a photocatalyst sheet alone were attached with the corrugated eyes aligned to obtain a deodorizing antibacterial filter.
【0035】比較例2 光触媒シートのみで作製したコルゲート部材(厚み5m
m)と、エレクトレットシートのみで作製したコルゲー
ト部材(厚み5mm)をコルゲートの目を揃えて貼合
せ、脱臭抗菌除塵フィルターとした。Comparative Example 2 A corrugated member (5 m thick) made of only a photocatalyst sheet
m) and a corrugated member (thickness: 5 mm) made of only an electret sheet with the corrugated eyes aligned and bonded to obtain a deodorizing antibacterial dust filter.
【0036】比較例3 吸着脱臭シートのみで作製したコルゲート部材(厚み5
mm)と、エレクトレットシートのみで作製したコルゲ
ート部材(厚み5mm)をコルゲートの目を揃えて貼合
せ、脱臭除塵フィルターとした。Comparative Example 3 A corrugated member (thickness 5
mm) and a corrugated member (thickness: 5 mm) made of only an electret sheet with the corrugated eyes aligned and laminated to form a deodorizing and dust removing filter.
【0037】比較例4 吸着脱臭シートのみで作製したコルゲート部材(厚み1
0mm)と、光触媒シートのみで作製したコルゲート部
材(厚み10mm)をコルゲートの目を揃えて貼合せ、
脱臭抗菌フィルターとした。COMPARATIVE EXAMPLE 4 A corrugated member (thickness: 1) made of only an adsorption and deodorizing sheet
0 mm) and a corrugated member (thickness: 10 mm) made of only a photocatalyst sheet, with the corrugated eyes aligned and stuck together.
A deodorizing antibacterial filter was used.
【0038】比較例5 光触媒シートのみで作製したコルゲート部材(厚み10
mm)と、エレクトレットシートのみで作製したコルゲ
ート部材(厚み10mm)をコルゲートの目を揃えて貼
合せ、脱臭抗菌除塵フィルターとした。Comparative Example 5 A corrugated member (thickness: 10) made of only a photocatalyst sheet
mm) and a corrugated member (thickness: 10 mm) made of only an electret sheet with the corrugated eyes aligned and bonded to obtain a deodorizing antibacterial dust filter.
【0039】比較例6 吸着脱臭シートのみで作製したコルゲート部材(厚み1
0mm)と、エレクトレットシートのみで作製したコル
ゲート部材(厚み10mm)をコルゲートの目を揃えて
貼合せ、脱臭除塵フィルターとした。Comparative Example 6 A corrugated member (thickness: 1) made of only an adsorption and deodorizing sheet
0 mm) and a corrugated member (thickness: 10 mm) made only of an electret sheet, with the corrugated eyes aligned and bonded to obtain a deodorizing and dust removing filter.
【0040】比較例7 吸着脱臭シートのみで作製したコルゲート部材(厚み1
0mm)を脱臭フィルターとした。Comparative Example 7 A corrugated member (thickness: 1) made of only an adsorption and deodorizing sheet
0 mm) was used as a deodorizing filter.
【0041】比較例8 光触媒シートのみで作製したコルゲート部材(厚み10
mm)を脱臭抗菌フィルターとした。Comparative Example 8 A corrugated member (thickness 10
mm) was used as a deodorizing antibacterial filter.
【0042】比較例9 エレクトレットシートのみで作製したコルゲート部材
(厚み10mm)を除塵フィルターとした。Comparative Example 9 A corrugated member (thickness: 10 mm) made of only an electret sheet was used as a dust filter.
【0043】以上、実施例および比較例で得られたフィ
ルターは、以下の方法で試験を行い、その性能を評価し
た。The filters obtained in Examples and Comparative Examples were tested by the following methods to evaluate the performance.
【0044】<脱臭性能>内部にファンを設置した密閉
容器中に実施例、比較例で得られた一定面積のフィルタ
ーを置き、容器中にアセトアルデヒドを100ppm注
入し、30分後の容器中のアセトアルデヒド濃度(pp
m)をガスクロマトグラフで測定した。フィルターに光
触媒シートを含むものは、密閉容器中に設置した6Wの
ブラックランプによりコルゲート断面に光があたるよう
にした。光触媒シートを使用していないフィルターは光
を照射することなく同様の測定を行った。<Deodorizing Performance> The filters having a constant area obtained in Examples and Comparative Examples were placed in a closed container having a fan installed therein, and 100 ppm of acetaldehyde was injected into the container. Concentration (pp
m) was measured by gas chromatography. The filter containing a photocatalyst sheet was exposed to light on the cross section of the corrugate by a 6 W black lamp installed in a closed container. The same measurement was performed without irradiating light on the filter not using the photocatalyst sheet.
【0045】<通気性>JIS B 9908に準拠し
て、実施例および比較例のフィルターの圧力損失を風速
1m/秒で測定した。圧力損失が小さい方が通気性が優
れる。<Air permeability> The pressure loss of the filters of Examples and Comparative Examples was measured at a wind speed of 1 m / sec in accordance with JIS B 9908. The smaller the pressure loss, the better the air permeability.
【0046】<除塵性>実施例および比較例のフィルタ
ーに風速5.3cm/秒で風を通過させた場合の大気塵
中の0.3〜0.5μmの粒子の除去率を測定した。<Dust Removal> The removal rate of particles of 0.3 to 0.5 μm in atmospheric dust when the wind was passed through the filters of Examples and Comparative Examples at a wind speed of 5.3 cm / sec was measured.
【0047】<脱臭寿命>実施例および比較例のフィル
ターに風速5.3cm/秒でタバコ煙を含む風を通過さ
せ、フィルターの前後でアセトアルデヒド濃度を測定し
てアセトアルデヒド除去率を算出した。このアセトアル
デヒド除去率が試験開始直後のアセトアルデヒド除去率
の半分になるまでの時間を脱臭寿命(単位:時間)とし
た。なお、フィルターに光触媒シートが使用されている
ものはブラックライトの光を照射しながら同様の測定を
行った。<Deodorization Life> A wind containing tobacco smoke was passed through the filters of Examples and Comparative Examples at a wind speed of 5.3 cm / sec, and the acetaldehyde concentration was measured before and after the filters to calculate the acetaldehyde removal rate. The time until the acetaldehyde removal rate became half of the acetaldehyde removal rate immediately after the start of the test was defined as the deodorizing life (unit: hours). In the case where the photocatalyst sheet was used for the filter, the same measurement was performed while irradiating black light.
【0048】<抗菌性>実施例および比較例のフィルタ
ーに大腸菌を含む原液を滴下し、蛍光灯で6時間照射し
た後に水で洗い流して培地の上で培養した。元々の原液
をシャーレに滴下して同じく蛍光灯で6時間照射した後
に水で洗い流して培地の上で培養したものをブランクと
した。フィルターに滴下して培養した細菌数が、ブラン
クの百分の1を越える場合を抗菌性が劣、百分の1以下
の場合を抗菌性が有、千分の1以下の場合を抗菌性が優
で判定した。<Antibacterial Property> A stock solution containing Escherichia coli was dropped on the filters of Examples and Comparative Examples, irradiated with a fluorescent lamp for 6 hours, washed with water, and cultured on a medium. The original stock solution was dropped on a Petri dish, irradiated with a fluorescent lamp for 6 hours, washed with water, and cultured on a medium to obtain a blank. Antibacterial properties are poor when the number of bacteria cultivated by dropping on the filter exceeds 1/100 of the blank, antibacterial when 1/100 or less, and antibacterial when 1/1000 or less. It was judged by Yu.
【0049】上記の方法により試験を行い、その性能を
評価した結果について、表1に記載する。また実施例
4、5の空気清浄機については1立米の密閉容器にてタ
バコを燃焼させ、各々脱臭性、脱臭・除塵性を確認し、
空気清浄化作用があることを確かめた。Table 1 shows the results of the tests performed according to the above-mentioned methods and the evaluation of the performance. For the air purifiers of Examples 4 and 5, the tobacco was burned in a 1 cubic meter sealed container, and the deodorizing properties, deodorizing and dust removing properties were confirmed.
It was confirmed that there was an air cleaning effect.
【0050】[0050]
【表1】 [Table 1]
【0051】表1の結果から、以下のことが判る。From the results in Table 1, the following can be understood.
【0052】光触媒シートと吸着脱臭シートを組み合わ
せたコルゲートを用いた実施例1の場合は、光触媒と吸
着剤が近傍にあるため脱臭性能が高く、かつ吸着脱臭シ
ートで吸着した臭気分も光触媒で分解できるため脱臭寿
命が長くなる効果がある。光触媒シートからなるコルゲ
ートと吸着脱臭シートからなるコルゲートを組み合わせ
た比較例1の場合は、脱臭性能はある程度のレベルに達
するが吸着脱臭シートを効率良く再生できず、吸着剤が
飽和してしまうと脱臭性能の寿命に到達してしまう。こ
のため初期の脱臭性能を長時間維持することはできな
い。また光触媒シートのコルゲート部分、吸着脱臭シー
トのコルゲ−ト部分が短いため、それぞれの性能を十分
発揮するまえに風が通り抜けてしまうためか実施例1に
比べると脱臭、抗菌の効率が良くない。それぞれのシー
トを10mmずつの厚みで作製した比較例4のコルゲー
トは、脱臭、抗菌などの性能は良いが、空気清浄機に組
み込む場合に重要な圧損が上昇しており、一定条件で風
量が少なくなり、ファンの回転音が大きくなるため好ま
しくない。In the case of Example 1 using a corrugated combination of a photocatalyst sheet and an adsorption / deodorization sheet, the photocatalyst and the adsorbent are close to each other, so the deodorization performance is high, and the odor adsorbed by the adsorption / deodorization sheet is also decomposed by the photocatalyst. This has the effect of extending the deodorizing life. In the case of Comparative Example 1 in which the corrugate composed of a photocatalyst sheet and the corrugate composed of an adsorption and deodorization sheet were combined, the deodorization performance reached a certain level, but the adsorption and deodorization sheet could not be efficiently regenerated, and if the adsorbent became saturated, deodorization occurred. Performance life will be reached. For this reason, the initial deodorizing performance cannot be maintained for a long time. Further, since the corrugated portion of the photocatalyst sheet and the corrugated portion of the adsorptive and deodorizing sheet are short, the wind passes through before the respective performances are sufficiently exhibited. The corrugate of Comparative Example 4, in which each sheet was made with a thickness of 10 mm, had good performances such as deodorization and antibacterial, but the important pressure loss increased when incorporated in an air purifier, and the air volume was small under certain conditions. This is not preferable because the fan rotation noise increases.
【0053】光触媒シートとエレクトレットシートを組
み合わせたコルゲートを用いた実施例2の場合は、エレ
クトレットシートの使用により除塵性が高く、光触媒シ
ート部分に塵埃が付着しないため光の照射効率が高く脱
臭性能を長期間維持することができる。光触媒シートか
らなるコルゲートとエレクトレットシートからなるコル
ゲートを組み合わせた比較例2の場合は、光触媒シート
のコルゲート部分、エレクトレットシートのコルゲート
部分が短いため、それぞれの性能を十分発揮するまえに
風が通り抜けてしまうためか実施例2に比べると脱臭、
抗菌、除塵の効率が良くない。それぞれのシートを10
mmずつの厚みで作製した比較例5のコルゲートは、脱
臭、抗菌、除塵などの性能は良いが、空気清浄機に組み
込む場合に重要な圧損が上昇しており、一定条件で風量
が少なくなり、ファンの回転音が大きくなるため好まし
くない。In the case of the second embodiment using the corrugate in which the photocatalyst sheet and the electret sheet are combined, the use of the electret sheet provides high dust-removing property, and since no dust adheres to the photocatalyst sheet portion, the light irradiation efficiency is high and the deodorizing performance is improved. Can be maintained for a long time. In the case of Comparative Example 2 in which the corrugate made of the photocatalyst sheet and the corrugate made of the electret sheet are combined, the wind passes through before the corrugated portion of the photocatalyst sheet and the corrugated portion of the electret sheet are short, so that the respective performances are sufficiently exhibited. Deodorization compared to Example 2,
Antibacterial and dust removal efficiency is not good. 10 for each sheet
The corrugate of Comparative Example 5, which was manufactured with a thickness of mm, had good performances such as deodorization, antibacterial, and dust removal, but the important pressure loss when incorporated in an air purifier increased, and the air volume decreased under certain conditions. It is not preferable because the rotation noise of the fan increases.
【0054】吸着脱臭シートとエレクトレットシートを
組み合わせたコルゲートを用いた実施例3の場合は、エ
レクトレットシートの使用により除塵性が高く、吸着剤
部分に塵埃が付着しないため脱臭性能を長期間維持する
ことができる。吸着脱臭シートからなるコルゲートとエ
レクトレットシートからなるコルゲートを組み合わせた
比較例3の場合は、吸着脱臭シートのコルゲート部分、
エレクトレットシートのコルゲ−ト部分が短いため、そ
れぞれの性能を十分発揮するまえに風が通り抜けてしま
うためか実施例3に比べると脱臭、除塵の効率が良くな
い。それぞれのシートを10mmずつの厚みで作製した
比較例6のコルゲートは、脱臭、除塵などの性能は良い
が、空気清浄機に組み込む場合に重要な圧損が上昇して
おり、一定条件で風量が少なくなり、ファンの回転音が
大きくなるため好ましくない。In the case of Example 3 using a corrugated combination of an adsorbent deodorizing sheet and an electret sheet, the use of an electret sheet provides high dust removal properties, and the adsorbent does not adhere to dust, so that the deodorizing performance is maintained for a long period of time. Can be. In the case of Comparative Example 3 in which a corrugate made of an adsorbent deodorizing sheet and a corrugate made of an electret sheet are combined, the corrugated portion of the adsorbent deodorant sheet,
Since the corrugated portion of the electret sheet is short, the wind passes through before the respective performances are sufficiently exhibited, and the efficiency of deodorization and dust removal is lower than in the third embodiment. The corrugates of Comparative Example 6, in which each sheet was made with a thickness of 10 mm, had good performances such as deodorization and dust removal, but the important pressure loss when incorporated in an air purifier was increased, and the air volume was small under certain conditions. This is not preferable because the fan rotation noise increases.
【0055】吸着脱臭シートのみからなる比較例7のフ
ィルターでは、初期の脱臭性能には優れるが、吸着脱臭
シートの再生ができず、吸着剤が飽和してしまうと脱臭
性能の寿命に到達してしまう。光触媒シートのみからな
る比較例8のフィルターでは脱臭寿命には優れるが、初
期の脱臭性能に幾分劣るものになる。エレクトレットシ
ートのみからなる比較例9のフィルターでは、除塵性に
は優れるが、脱臭、抗菌性能は殆ど期待できない。The filter of Comparative Example 7 consisting of only the adsorption and deodorizing sheet is excellent in the initial deodorizing performance, but cannot regenerate the adsorbing and deodorizing sheet, and if the adsorbent becomes saturated, the life of the deodorizing performance is reached. I will. The filter of Comparative Example 8 consisting only of the photocatalyst sheet has an excellent deodorizing life, but is somewhat inferior in the initial deodorizing performance. The filter of Comparative Example 9 consisting only of an electret sheet has excellent dust removal properties, but hardly expects deodorization and antibacterial performance.
【0056】[0056]
【発明の効果】本発明ではエレクトレットシート、光触
媒シート、吸着脱臭シートがそれぞれ近傍にある形でコ
ルゲートを構成するため光触媒の寿命を縮める大きな要
因である塵、埃、タバコの煙(オイルミスト)などが効
率よく捕集され、光触媒シートが高寿命化できる。本発
明の方法では圧力損失を増大させずに光触媒の高寿命化
が達成できる他、エレクトレットシートと吸着脱臭シー
トによるコルゲートでは、圧力損失を増大させることな
く脱臭と除塵の両方を行うことができ、光触媒シートを
使用したフィルターには抗菌性もあり、効率的な空気清
浄が可能になり、効率的な空気清浄化の手段になり得る
ものである。According to the present invention, since the electret sheet, the photocatalyst sheet, and the adsorption / deodorization sheet constitute the corrugate in the vicinity thereof, dust, dust, cigarette smoke (oil mist), etc., which are major factors for shortening the life of the photocatalyst. Is efficiently collected, and the life of the photocatalyst sheet can be prolonged. In the method of the present invention, in addition to achieving a longer life of the photocatalyst without increasing pressure loss, a corrugated electret sheet and an adsorption and deodorization sheet can perform both deodorization and dust removal without increasing pressure loss, A filter using a photocatalyst sheet also has antibacterial properties, enables efficient air purification, and can be a means for efficient air purification.
───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.6 識別記号 FI A61L 9/16 A61L 9/16 D B01D 46/00 302 B01D 46/00 302 53/04 53/04 A 53/38 B01J 35/02 J 53/81 35/04 311A 53/86 B31F 1/20 B01J 35/02 B01D 53/34 116J 35/04 311 53/36 H B31F 1/20 J ──────────────────────────────────────────────────の Continued on front page (51) Int.Cl. 6 Identification code FI A61L 9/16 A61L 9/16 D B01D 46/00 302 B01D 46/00 302 53/04 53/04 A 53/38 B01J 35 / 02 J 53/81 35/04 311A 53/86 B31F 1/20 B01J 35/02 B01D 53/34 116J 35/04 311 53/36 H B31F 1/20 J
Claims (4)
触媒を含有する光触媒シートを交互に積層してコルゲー
トに形成したことを特徴とする脱臭抗菌フィルター。1. A deodorizing antibacterial filter, wherein an adsorbent-containing deodorant sheet containing an adsorbent and a photocatalyst sheet containing a photocatalyst are alternately laminated to form a corrugated antibacterial filter.
クトレットシートを交互に積層してコルゲートに形成し
たことを特徴とする脱臭抗菌除塵フィルター。2. A deodorizing antibacterial dedusting filter characterized in that a photocatalyst sheet containing a photocatalyst and an electret sheet are alternately laminated to form a corrugate.
レクトレットシートを交互に積層してコルゲートに形成
したことを特徴とする脱臭除塵フィルター。3. A deodorizing and dedusting filter characterized in that an adsorbent-containing deodorizing sheet containing an adsorbent and an electret sheet are alternately laminated to form a corrugate.
菌フィルターあるいは脱臭抗菌除塵フィルターに光が当
たるように設計された空気清浄機。4. An air purifier designed to shine light on the deodorizing antibacterial filter or the deodorizing antibacterial dedusting filter according to claim 1.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10068904A JPH11262612A (en) | 1998-03-18 | 1998-03-18 | Deodorizing filter |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10068904A JPH11262612A (en) | 1998-03-18 | 1998-03-18 | Deodorizing filter |
Publications (1)
Publication Number | Publication Date |
---|---|
JPH11262612A true JPH11262612A (en) | 1999-09-28 |
Family
ID=13387115
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP10068904A Pending JPH11262612A (en) | 1998-03-18 | 1998-03-18 | Deodorizing filter |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH11262612A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2001096114A (en) * | 1999-09-29 | 2001-04-10 | Toyoda Gosei Co Ltd | Air cleaner |
WO2002020259A1 (en) * | 2000-09-06 | 2002-03-14 | Ward Calvin B | Composition for protecting work surfaces from contamination |
JP2010036148A (en) * | 2008-08-07 | 2010-02-18 | Techno Ryowa Ltd | Removal system for volatile organic compound by gas absorption tower |
-
1998
- 1998-03-18 JP JP10068904A patent/JPH11262612A/en active Pending
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2001096114A (en) * | 1999-09-29 | 2001-04-10 | Toyoda Gosei Co Ltd | Air cleaner |
WO2002020259A1 (en) * | 2000-09-06 | 2002-03-14 | Ward Calvin B | Composition for protecting work surfaces from contamination |
JP2010036148A (en) * | 2008-08-07 | 2010-02-18 | Techno Ryowa Ltd | Removal system for volatile organic compound by gas absorption tower |
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